Unit 2: Molecular and Ionic Compound Structure

According to VSEPR theory, what is the molecular geometry of CH₄?

SO₂ is a bent molecule with a bond angle of approximately 119°. Which best explains why the angle is less than 120°?

Which molecule is polar?

What is the molecular geometry of water (H₂O)?

Which molecule has a dipole moment of zero?

In the Lewis structure of the sulfate ion (SO₄²⁻), the formal charge on the sulfur atom when drawn with no double bonds is

Which of the following molecules is expected to have a trigonal bipyramidal electron geometry?

How many sigma (σ) and pi (π) bonds are in a molecule of ethene (C₂H₄)?

The bond angle in NF₃ is approximately 102°, which is less than the ideal tetrahedral angle of 109.5°. The best explanation is

VSEPR theory predicts molecular geometry based on:

A molecule with [math] hybridization has what bond angles?

A molecule with a trigonal bipyramidal electron geometry and one lone pair has what molecular shape?

Electronegativity differences determine bond type: a large difference creates:

Formal charge is calculated by:

Metallic bonding involves:

Resonance structures indicate that:

Sigma ([math]) bonds differ from pi ([math]) bonds in that sigma bonds:

Which compound is most likely an ionic compound?

What is the molecular geometry and approximate bond angles of XeF₄?

Based on formal charge analysis, which Lewis structure best represents SCN⁻?

Based on the table, what do the C–C, C=C, and C≡C bond energies reveal about multiple bonds?

Which molecule has the smallest bond angle?

Which of the following best explains the trend in lattice energies?

Why does CO₂ have a dipole moment of zero while SO₂ does not?

Which property best distinguishes metallic solids from ionic solids?

The molecule SF₆ has an octahedral electron geometry with no lone pairs on the central atom. Based on this, which of the following statements about SF₆ is correct?

Sodium chloride (NaCl) has a melting point of 801°C while diamond has a melting point of over 3,500°C. Both are crystalline solids. The difference in melting points is best explained by:

The molecule XeF₄ has which molecular geometry and how many lone pairs on the central atom?

Which of the following molecules is nonpolar despite having polar bonds? \nI. CO₂ II. H₂O III. NH₃ IV. CCl₄